Chassis for wheeled robot

Abstract

The utility model discloses a chassis for a wheeled robot, and belongs to the technical field of chassis of wheeled robots. Comprising an anti-collision structure, wheels, a lower chassis, a cover plate and a driving motor, by means of an anti-collision beam, when the chassis is collided in a complex and narrow working environment, collision force can be continuously absorbed and consumed in the transmission process through a flexible beam, an upper rigid beam and a lower rigid beam in the anti-collision beam, and therefore the purpose of stable operation of the chassis is achieved; when the chassis is rubbed and scratched, the belt on the anti-collision wheel is rubbed, so that the roller is driven to rotate on the rolling shaft, the friction force is resolved, and smooth running of the chassis is guaranteed; when the cleanliness of the working environment where the chassis is located is poor, impurities on the walking path of the chassis are blown away through the blowing structure, and therefore the purpose of preventing the impurities from scratching the chassis or winding wheels is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheeled robot chassis, and particularly to a chassis for a wheeled robot. Background Technique

[0002] Due to their high flexibility and adaptability, wheeled robots have shown extensive application value in multiple fields. In the industrial field, they are used for inspection and monitoring to ensure the safe and efficient operation of facilities; in public places, wheeled robots perform patrol tasks to enhance security; in logistics and warehouse management, they improve logistics efficiency and inventory management accuracy. In addition, in construction sites, specific industry services, and scientific research exploration, etc., wheeled robots also play important roles, such as equipment inspection, service reception, environmental survey, etc. Wheeled robots are bringing unprecedented convenience and efficiency to all walks of life through automation and intelligent technologies.

[0003] Although wheeled robots have many advantages, they are prone to being bumped and damaged in some complex environments, causing damage to the physical and electronic components integrated in the robot chassis, resulting in limited or ineffective functions; the impact will also cause work interruption and even damage to surrounding equipment, causing economic losses. Therefore, the safety protection of the wheeled robot chassis during operation is crucial. Content of the Utility Model

[0004] The purpose of the utility model is to provide a chassis for a wheeled robot to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A chassis for a wheeled robot includes a lower chassis, anti-collision structures are installed at both ends of the lower chassis, a driving motor is installed on the lower chassis, wheels are installed on the driving motor, a cover plate is installed on the lower chassis, the anti-collision structure is used to protect the chassis, and the driving motor is used to drive the wheels. The driving motor is used to provide power for the wheels.

[0006] A control system is installed inside the lower chassis, and the control system is used to control the driving motor and the purging motor.

[0007] The lower chassis includes a chassis seat, front baffles are installed at both ends of the chassis seat, a middle partition board is installed on the chassis seat, the anti-collision structure is installed on the front baffle, and the driving motor is installed on the middle partition board.

[0008] The anti-collision structure includes an anti-collision beam and a purging structure, and the anti-collision beam is installed on the middle partition board.

[0009] The anti-collision beam includes a flexible beam, bolts, a first shock absorber, and a second shock absorber. A connecting block is installed on the flexible beam. Upper and lower rigid beams are installed at both the upper and lower ends of the flexible beam. The bolts pass through the upper rigid beam, the lower rigid beam, and the connecting block. A rubber block is installed between the upper rigid beam and the lower rigid beam. A strip-shaped groove is provided on the flexible beam. One end of the first shock absorber is connected to the flexible beam, and the other end of the first shock absorber is connected to the front baffle. One end of the second shock absorber is connected to the connecting block, and the other end of the second shock absorber is connected to the front baffle. Anti-collision wheels are installed between the upper rigid beams, and anti-collision wheels are installed between the lower rigid beams. The flexible beam is made of a flexible material, and the first shock absorber and the second shock absorber adopt a spring shock-absorbing structure.

[0010] The control system activates the drive motor. The output shaft of the drive motor drives the wheels to rotate, and the rotation of the wheels drives the chassis to move to complete the work task. When the working environment is relatively complex and narrow, and the side of the chassis hits or bumps into obstacles, the anti-collision wheels receive the impact and transfer the impact force to the upper rigid beam and the lower rigid beam. The upper rigid beam and the lower rigid beam rotate around the bolts and squeeze the rubber block. The rubber block shrinks to dissolve and absorb the squeezing force. The upper rigid beam and the lower rigid beam transfer the impact force to the flexible beam. After the flexible beam dissolves and absorbs part of the impact force, it transfers the remaining impact force to the first shock absorber, and the spring in the first shock absorber compresses and dissolves and absorbs the remaining impact force.

[0011] When the chassis is impacted head-on, the anti-collision wheels transfer the impact force to the upper rigid beam and the lower rigid beam. The upper rigid beam and the lower rigid beam rotate around the bolts under the force, causing the rubber block and the flexible beam to protrude forward. The protruding rubber block and flexible beam are impacted when they collide, and transfer the impact force to the connecting block and the first shock absorber. The connecting block transfers the impact force to the second shock absorber. The springs in the first shock absorber and the second shock absorber compress and dissolve and absorb the impact force, thereby achieving the purpose of protecting the chassis from collisions.

[0012] The purging structure includes a purging motor, an air outlet strip, and a purging housing. A fan is installed on the output shaft of the purging motor. The purging housing is internally connected to the air outlet strip through a pipeline. The air outlet strip is installed at the bottom ends of the upper rigid beam and the lower rigid beam. Both the purging housing and the purging motor are connected to the chassis seat through connecting seats, and the output shaft of the purging motor is rotatably connected to the purging housing.

[0013] When the working environment where the chassis is located is relatively dirty and messy, the control system activates the purging motor. The output shaft of the purging motor drives the fan to rotate. The airflow generated by the rotation of the fan flows from the purging housing into the pipeline, then from the pipeline into the air outlet strip, and is blown out from the air outlet strip to blow away the impurities on the walking path of the chassis, thereby preventing the impurities from scraping the chassis or winding around the wheels.

[0014] The anti-collision wheel includes rollers, a belt, and a roller shaft. The rollers are movably connected to the upper rigid beam and the lower rigid beam through the roller shaft respectively, and the rollers are movably connected to each other through the belt.

[0015] When the chassis encounters friction or scraping, the belt on the anti-collision wheel is rubbed, driving the roller to rotate on the roller shaft, thereby resolving the frictional force and ensuring smooth travel of the chassis.

[0016] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: The present utility model utilizes the anti-collision beam, so that when the chassis is collided in a complex and narrow working environment, the impact force can be transmitted and absorbed through the flexible beam, upper rigid beam and lower rigid beam in the anti-collision beam, and the remaining impact force is absorbed through the rubber block, the first shock absorber and the second shock absorber, thereby achieving the purpose of smooth operation of the chassis; when the chassis encounters friction or scraping, the belt on the anti-collision wheel is rubbed, driving the roller to rotate on the roller shaft, thereby resolving the frictional force and ensuring smooth travel of the chassis; when the working environment where the chassis is located is relatively dirty and messy, the blowing structure is used to blow away the impurities on the walking path of the chassis, thereby achieving the purpose of preventing the impurities from scraping the chassis or winding around the wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is the overall elevation view of the chassis of the present utility model;

[0019] Figure 2 is the top view of the internal structure of the chassis of the present utility model;

[0020] Figure 3 is the elevation view of the anti-collision structure of the present utility model;

[0021] Figure 4 is the exploded view of the anti-collision beam of the present utility model;

[0022] Figure 5 is the elevation view of the blowing structure of the present utility model;

[0023] Figure 6 is the elevation view of the anti-collision wheel of the present utility model;

[0024] In the figures: 1. Anti-collision structure; 2. Wheel; 3. Lower chassis; 4. Cover plate; 5. Driving motor; 11. Anti-collision beam; 12. Blowing structure; 31. Middle partition board; 32. Front baffle; 33. Chassis seat; 111. Upper rigid beam; 112. Flexible beam; 113. Rubber block; 114. Anti-collision wheel; 115. Bolt; 116. First shock absorber; 117. Second shock absorber; 118. Connecting block; 119. Lower rigid beam; 121. Air outlet strip; 122. Fan; 123. Blowing motor; 124. Blowing housing; 1141. Belt; 1142. Roller; 1143. Roller shaft. Detailed implementation manners

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-6 , the present utility model provides a technical solution: A chassis for a wheeled robot includes a lower chassis 3, anti-collision structures 1 are installed at both ends of the lower chassis 3, a driving motor 5 is installed on the lower chassis 3, wheels 2 are installed on the driving motor 5, a cover plate 4 is installed on the lower chassis 3, the anti-collision structure 1 is used to protect the chassis, and the driving motor 5 is used to drive the wheels 2. The driving motor 5 is used to provide power for the wheels 2. A control system is installed inside the lower chassis 3, and the control system is used to control the driving motor 5 and the purging motor 123.

[0027] The lower chassis 3 includes a chassis seat 33, front baffles 32 are installed at both ends of the chassis seat 33, a middle partition plate 31 is installed on the chassis seat 33, the anti-collision structure 1 is installed on the front baffle 32, and the driving motor 5 is installed on the middle partition plate 31.

[0028] The anti-collision structure 1 includes an anti-collision beam 11 and a purging structure 12, and the anti-collision beam 11 is installed on the middle partition plate 31. The anti-collision beam 11 includes a flexible beam 112, bolts 115, a first shock absorber 116 and a second shock absorber 117. A connecting block 118 is installed on the flexible beam 112. Upper rigid beams 111 and lower rigid beams 119 are installed at both the upper and lower ends of the flexible beam 112. The bolts 115 penetrate through the upper rigid beam 111, the lower rigid beam 119 and the connecting block 118. A rubber block 113 is installed between the upper rigid beam 111 and the lower rigid beam 119. A strip-shaped groove is provided on the flexible beam 112. One end of the first shock absorber 116 is connected to the flexible beam 112, and the other end of the first shock absorber 116 is connected to the front baffle 32. One end of the second shock absorber 117 is connected to the connecting block 118, and the other end of the second shock absorber 117 is connected to the front baffle 32. Anti-collision wheels 114 are installed between the upper rigid beams 111, and anti-collision wheels 114 are installed between the lower rigid beams 119. The flexible beam 112 is made of a flexible material, and the first shock absorber 116 and the second shock absorber 117 adopt a spring shock absorption structure.

[0029] The control system activates the drive motor 5. The output shaft of the drive motor 5 drives the wheel 2 to rotate, and the rotation of the wheel 2 drives the chassis to move to complete the work task. When the working environment is relatively complex and narrow, and the side of the chassis hits or bumps into an obstacle, the anti-collision wheel 114 receives the impact and transmits the impact force to the upper rigid beam 111 and the lower rigid beam 119. The upper rigid beam 111 and the lower rigid beam 119 rotate around the bolt 115 and squeeze the rubber block 113. The rubber block 113 contracts to dissolve and absorb the extrusion force. The upper rigid beam 111 and the lower rigid beam 119 transmit the impact force to the flexible beam 112. After the flexible beam 112 dissolves and absorbs part of the impact force, it transmits the remaining impact force to the first shock absorber 116. The spring in the first shock absorber 116 compresses and dissolves and absorbs the remaining impact force.

[0030] When the chassis is impacted frontally, the anti-collision wheel 114 transmits the impact force to the upper rigid beam 111 and the lower rigid beam 119. The upper rigid beam 111 and the lower rigid beam 119 rotate around the bolt 115 under the action of the force, causing the rubber block 113 and the flexible beam 112 to protrude forward. The protruding rubber block 113 and flexible beam 112 are impacted when they collide, and transmit the impact force to the connecting block 118 and the first shock absorber 116. The connecting block 118 transmits the impact force to the second shock absorber 117. The springs in the first shock absorber 116 and the second shock absorber 117 compress and dissolve and absorb the impact force, so as to achieve the purpose of chassis anti-collision.

[0031] The anti-collision wheel 114 includes a roller 1142, a belt 1141 and a roller shaft 1143. The roller 1142 is movably connected to the upper rigid beam 111 and the lower rigid beam 119 through the roller shaft 1143 respectively, and the rollers 1142 are movably connected by the belt 1141. When the chassis is rubbed or scratched, the belt 1141 on the anti-collision wheel 114 is rubbed, which drives the roller to rotate on the roller shaft 1143, thereby dissolving the frictional force and ensuring the smooth driving of the chassis.

[0032] The purging structure 12 includes a purging motor 123, an air outlet strip 121 and a purging housing 124. A fan 122 is installed on the output shaft of the purging motor 123. The purging housing 124 is internally communicated with the air outlet strip 121 through a pipeline. The air outlet strip 121 is installed at the bottom ends of the upper rigid beam 111 and the lower rigid beam 119. Both the purging housing 124 and the purging motor 123 are connected to the chassis base 33 through connecting seats, and the output shaft of the purging motor 123 is rotatably connected to the purging housing 124.

[0033] Working principle of the utility model: The control system activates the drive motor 5, and the output shaft of the drive motor 5 drives the wheel 2 to rotate. The rotation of the wheel 2 drives the chassis to move to complete the work task. When the working environment is relatively complex and narrow, and the side of the chassis hits or bumps into an obstacle, the anti-collision wheel 114 receives the impact and transmits the impact force to the upper rigid beam 111 and the lower rigid beam 119. The upper rigid beam 111 and the lower rigid beam 119 rotate around the bolt 115 and squeeze the rubber block 113. The rubber block 113 shrinks to resolve and absorb the extrusion force. The upper rigid beam 111 and the lower rigid beam 119 transmit the impact force to the flexible beam 112. After the flexible beam 112 resolves and absorbs part of the impact force, it transmits the remaining impact force to the first shock absorber 116. The spring in the first shock absorber 116 compresses and resolves and absorbs the remaining impact force;

[0034] When the chassis is impacted frontally, the anti-collision wheel 114 transmits the impact force to the upper rigid beam 111 and the lower rigid beam 119. The upper rigid beam 111 and the lower rigid beam 119 rotate around the bolt 115 under the action of the force, causing the rubber block 113 and the flexible beam 112 to protrude forward. The protruding rubber block 113 and flexible beam 112 are impacted when they collide, and transmit the impact force to the connecting block 118 and the first shock absorber 116. The connecting block 118 transmits the impact force to the second shock absorber 117. The springs in the first shock absorber 116 and the second shock absorber 117 compress and resolve and absorb the impact force, so as to achieve the purpose of chassis anti-collision.

[0035] When the chassis is rubbed or scratched, the belt 1141 on the anti-collision wheel 114 is rubbed, which drives the roller to rotate on the roller shaft 1143, thereby resolving the frictional force and ensuring the smooth driving of the chassis.

[0036] When the working environment where the chassis is located is relatively dirty and messy, the control system activates the purging motor 123. The output shaft of the purging motor 123 drives the fan 122 to rotate. The airflow generated by the rotation of the fan 122 flows from the purging housing 124 into the pipeline. The airflow flows from the pipeline into the air outlet strip 121 and is blown out from the air outlet strip 121, blowing away the impurities on the walking path of the chassis, thereby preventing the impurities from rubbing against the chassis or winding around the wheel 2.

[0037] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A chassis for a wheeled robot, characterized in that: The chassis comprises a lower chassis (3), a drive motor (5) is mounted on the lower chassis (3), a wheel (2) is mounted on the output shaft of the drive motor (5), anti-collision structures (1) are mounted at both ends of the lower chassis (3), a cover plate (4) is mounted on the lower chassis (3), the anti-collision structure (1) is used to protect the chassis, and the drive motor (5) is used to provide power for the wheel (2).

2. A chassis for a wheeled robot according to claim 1, characterized in that: The anti-collision structure (1) comprises an anti-collision beam (11) and a purge structure (12); the lower chassis (3) comprises a chassis seat (33); front baffles (32) are mounted at both ends of the chassis seat (33); a middle baffle (31) is mounted on the chassis seat (33); the anti-collision structure (1) is mounted on the front baffle (32); a drive motor (5) is mounted on the middle baffle (31); and the anti-collision beam (11) is mounted on the middle baffle (31).

3. A chassis for a wheeled robot according to claim 2, characterized in that: The anti-collision beam (111) comprises a flexible beam (112), a bolt (115), a first shock absorber (116) and a second shock absorber (117); a connecting block (118) is installed on the flexible beam (112); an upper rigid beam (111) and a lower rigid beam (119) are installed at both upper and lower ends of the flexible beam (112); the bolt (115) passes through the upper rigid beam (111), the lower rigid beam (119) and the connecting block (118); one end of the first shock absorber (116) is connected to the flexible beam (112); the other end of the first shock absorber (116) is connected to the front baffle (32); two ends of the second shock absorber (117) are respectively connected to the connecting block (118) and the front baffle (32); an anti-collision wheel (114) is installed between the upper rigid beams (111); and an anti-collision wheel (114) is installed between the lower rigid beams (119).

4. A chassis for a wheeled robot according to claim 3, characterized in that: A rubber block (113) is installed between the upper rigid beam (111) and the lower rigid beam (119), and a strip groove is provided on the flexible beam (112).

5. A chassis for a wheeled robot according to claim 4, characterized in that: The purge structure (12) comprises a purge motor (123), an air outlet strip (121) and a purge housing (124); a fan (122) is mounted on an output shaft of the purge motor (123); the purge housing (124) is connected to the interior of the air outlet strip (121) via a pipeline; the air outlet strip (121) is mounted on the bottom ends of an upper rigid beam (111) and a lower rigid beam (119); the purge housing (124) and the purge motor (123) are both connected to a chassis seat (33) via a connecting seat; and the output shaft of the purge motor (123) is rotatably connected to the purge housing (124).

6. A chassis for a wheeled robot according to claim 5, characterized in that: The anti-collision wheel (114) comprises a roller (1142), a belt (1141) and a roller (1143); the roller (1142) is movably connected to the upper rigid beam (111) and the lower rigid beam (119) respectively via the roller (1143); and the rollers (1142) are movably connected to each other via the belt (1141).

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